Trifluoromethanesulfonic anhydride → Trifluoro-methanesulfonic acid 2-fluoro-4-methoxy-phenyl ester 2-Fluoro-4-methoxy-phenol

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Reaction Steps

The title compound was prepared by reacting 2-fluoro-4-methoxy-phenol (2.8 g, 19.7 mmol) with trifluoromethanesulfonic anhydride (4.31 mL, 7.23 g, 25.6 mmol) according to method B to yield 3.86 g (68%) of a clear yellow oil. 1H NMR (DMSO-d6): δ 3.82 (3H, s), 6.89-6.94 (1H, m), 7.24 (1H, dd, J=12.49 Hz, J=2.98 Hz), 7.61 (1H, t, J=9.09 Hz).

Provenance & Evidence